Figure 2.

Phylogenic tree depicting relationships between whole-genome order of markers on bovine
maps and sequence. Pairwise distances between maps are the 1 - τ, where τ is Kendall's
rank correlation coefficient. Whole-genome τ values were computed by summing the number
of inversions necessary to reconcile orders of each chromosome over all chromosomes.
Maps included in the comparison are the Btau3.1 sequence assembly (Btau3.1), the BAC
fingerprint map (BAC), the composite marker map, the third generation Illinois/Texas
(ILTX-2005) radiation hybrid (RH) map [29], the Shirikawa (SIAG) RH map [30], and
the SIAG-USDA linkage map [28]. BovGen RH and Alberta/Missouri (UAMU) linkage data
also contribute to the composite map, but are not included here because an independent
map of all markers scored on the BovGen panel is not available, and a lack of markers
shared by UAMU and data sets other than BovGen precludes meaningful comparison.